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%I #5 Oct 03 2013 09:31:22
%S 15,24,34,51,72,76,88,102,110,131,153,162,173,189,255,324,342,353,374,
%T 545,705,721,736,741,747,756,765,838,922,939,947,960,969,977,987,1000,
%U 1015,1026,1032,1047,1065,1080,1094,1100,1106,1130,1152,1167,1187
%N Interemirp sequence: average of emirp pairs, analogous to interprimes.
%H M. J. Halm, <a href="http://untilheaven.tripod.com/id112.htm">Sequences</a>
%F a(n) = (x(n)+x(n+1))/2 where x(n) is the n-th emirp number
%e E.g. a(1) = 15 because the first two emirps are 13 and 17 and (13 + 17)/2 = 15
%Y Cf. A006567, A024675.
%K nonn,base
%O 1,1
%A _Michael Joseph Halm_, Feb 17 2003
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